Electrochemical sensor using glassy carbon electrode modified with acylpyrazolone-multiwalled carbon nanotube composite film for determination of xanthine

2011 ◽  
Vol 16 (2) ◽  
pp. 689-695 ◽  
Author(s):  
Yun Song ◽  
Jinzhou Li
Keyword(s):  
Carbon Nanotube ◽  
Composite Film ◽  
Electrochemical Sensor ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Multiwalled Carbon Nanotube ◽  
Carbon Electrode ◽  
Multiwalled Carbon ◽  
Carbon Nanotube Composite

Electrochemical reduction of sunset yellow at a multiwalled carbon nanotube (MWCNT)-modified glassy carbon electrode and its analytical application

2010 ◽  
Vol 88 (7) ◽  
pp. 676-681 ◽  
Author(s):  
Yuan-Zhi Song
Keyword(s):  
Carbon Nanotube ◽  
Electrochemical Reduction ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Multiwalled Carbon Nanotube ◽  
Carbon Electrode ◽  
Modified Glassy Carbon Electrode ◽  
Sunset Yellow ◽  
Multiwalled Carbon

The electrochemical reduction of sunset yellow at a multiwalled carbon nanotube (MWCNT)-modified glassy carbon electrode is investigated using cyclic voltammetry. A simple, sensitive, and inexpensive method for determination of sunset yellow in soft drinks is proposed and the accuracy and reproducibility of this determination method are evaluated. This method is satisfactorily applied for the determination of sunset yellow in soft drinks in the concentration range of 1.2–125.0 mg L–1 and 125.0–265.0 mg L–1, with a detection limit of 0.5 mg L–1.

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